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Class Information
Number: 318/782
Name: Electricity: motive power systems > Induction motor systems > Primary circuit control > Starting control > Operating from a single phase source > With protective features
Description: Subject matter wherein means are provided to protect the motor from harmful operation.










Sub-classes under this class:

Class Number Class Name Patents
318/783 Thermal starting and thermal overload protection 115


Patents under this class:
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Patent Number Title Of Patent Date Issued
8600594 Vehicle and driving system for vehicle installation Dec. 3, 2013
8525465 Feedback switching device and method for driving of servo motor Sep. 3, 2013
8493013 Electric motor control algorithm with bypass relay Jul. 23, 2013
8412432 Protective arrangement for the protection of safety-relevant electronic circuits from malfunctions Apr. 2, 2013
8319465 Method for the automatic adjustment of a protective device having an excess-current release, particularly a low-voltage circuit breaker Nov. 27, 2012
8264184 Low-pin count fan speed control system and a method thereof Sep. 11, 2012
8193745 Filtering and boosting a signal from a drive circuit Jun. 5, 2012
8106614 Mirror adjustment mechanism, wing mirror unit and method Jan. 31, 2012
7969107 Motor control device Jun. 28, 2011
7804270 Motor start circuit with capacitive discharge protection Sep. 28, 2010
7800322 Isolation circuit for DC power sources Sep. 21, 2010
7755311 Fan abnormality detection device Jul. 13, 2010
7737645 Electronic tripping unit for a motor-circuit breaker of an electric motor Jun. 15, 2010
7650247 Method for the electrical protection of an electrical household appliance Jan. 19, 2010
7629755 Secondary battery control apparatus and secondary battery control method Dec. 8, 2009
7538502 Motor driver circuit, control method thereof, and electronic apparatus May. 26, 2009
7538508 Thermal overload protection May. 26, 2009
7501781 Pulse-width-modulation motor drive circuit having potential limiter Mar. 10, 2009
7498764 Control device for driving regulating motor Mar. 3, 2009
7429836 Motor driver circuit, control method thereof, and electronic apparatus Sep. 30, 2008
7408318 Motor drive unit Aug. 5, 2008
7378816 System and method for confirming a detection of low voltage and shorted SCRs May. 27, 2008
7360848 Parallel relay circuit for hydraulic braking device Apr. 22, 2008
7342371 System and method for detecting motor run condition Mar. 11, 2008
7327115 Stepping motor control apparatus, stepping motor control method, and stepping motor control program product Feb. 5, 2008
7265515 Starter for a line start electric motor Sep. 4, 2007
7248009 Motor temperature control using estimated motor temperature based on motor power dissipation Jul. 24, 2007
7098624 Method and system for detecting the disconnection of an auxiliary power supply from a poly-phase motor Aug. 29, 2006
7002318 Position sensor fault tolerant control for automotive propulsion system Feb. 21, 2006
6982539 Motor starting device Jan. 3, 2006
6894452 System and method for configurable motor controller settings May. 17, 2005
6873131 Dual voltage electric motors Mar. 29, 2005
6806677 Automatic control switch for an electric motor Oct. 19, 2004
6744229 Safety-guard detective circuit of a fan motor Jun. 1, 2004
6720749 Three-phase motor protector apparatus Apr. 13, 2004
6670786 Apparatus for controlling an induction motor Dec. 30, 2003
6534947 Pump controller Mar. 18, 2003
6532405 Method for detecting a locked axle on a locomotive AC traction motor Mar. 11, 2003
6495986 Safe speed monitoring for sensor-free three-phase drives Dec. 17, 2002
6486625 Device for controlling a starter for a motor vehicle Nov. 26, 2002
6452359 Starting system for an electric motor Sep. 17, 2002
6356047 Starting device for electric motors, which includes a PTC resistor and a relay in series Mar. 12, 2002
6249104 Cutout start switch heating Jun. 19, 2001
6114828 Apparatus and method for preventing overload on switching device in inverter circuit for motor applicable to electric vehicle Sep. 5, 2000
6081080 Method and apparatus for reducing voltage stresses in electric machines Jun. 27, 2000
6020702 Single phase compressor thermostat with start relay and motor protection Feb. 1, 2000
5977742 Electric vehicle control device Nov. 2, 1999
5973472 Single-phase asynchronous motor with two windings Oct. 26, 1999
5932981 Apparatus and method for reduced voltage controller Aug. 3, 1999
5861697 Single-phase induction motor and rotor assembling apparatus Jan. 19, 1999

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